SpamAssassin is an email utility that attempts to filter spam by examining incoming email and testing for spam characteristics. It uses Bayesian spam filtering and network testing to screen incoming email. This results in an overall score. If an incoming message reaches a predefined score, the message is discarded.
This score can be set under the Filters heading. The default setting is 5.

Click to expand...

I am not 100% sure, but I think the problem is: the SpamAssassin is not setup to DELETE the SPAM messages. For this reason they continue arriving in the INBOX of my domains and my clients domains.

Automatically Delete Spam
This function automatically deletes messages that meet or exceed the score limit. Activate this function by clicking the Auto-Delete Spam button under the Filters heading.
Click the Disable Auto-Delete Spam button to disable this feature.
note Note: Enabling this feature could cause you to lose email that is not spam, if a message meets or exceeds the defined score. Make sure SpamAssassin is configured properly for your account before using this feature.

Staff Member

You have less options available to you to help combat SPAM as a reseller. It may be a good idea to consult with your hosting provider about this issue. You could let them know that SPAM is making it through, and they may be able to enable some additional options to help prevent the SPAM from coming in. With cPanel access itself, you may want to add some filter rules under "Account Level Filtering". Rather than blocking specific email addresses, try adding rules that block based on specific message body content or subject.

Yes, it is really a big difficult to do something. Specially when you have a lot of domains.
I did not have this problems before, in the old host. But after I changed, the problems came together.
Imagine to insert email by email in the block list. It is better to delete it direct.

It is difficult to see that the system can identify it as SPAM, you setup it to be DELETED and NOTHING happens.

X-Ham-Report: Spam detection software, running on the system "foxtrot.chi.dzfav.net", has
identified this incoming email as possible spam. The original message
has been attached to this so you can view it (if it isn't spam) or label

Click to expand...

In my mind, if it was identified as SPAM, it needs to go direct to SPAM folder or be deleted. Neither one or other option happens.